Correlated electronic structure of LaOFeAs

Preprint

9 March 2008

preprint
Published by arXiv in arXiv

https://doi.org/10.48550/arXiv.0803.1279

Abstract

We compute the electronic structure, momentum resolved spectral function and optical conductivity of the new superconductor LaO$_{1-x}$F$_x$FeAs within the combination of the Density functional theory and the Dynamical Mean Field Theory. We find that the compound in the normal state is a strongly correlated metal and the parent compound is a bad metal at the verge of the metal insulator transition. We argue that the superconductivity is not phonon mediated.

Keywords

CORRELATED ELECTRONIC
DENSITY FUNCTIONAL THEORY
ELECTRONIC STRUCTURE
LAOFEAS
METAL INSULATOR TRANSITION
OPTICAL CONDUCTIVITY
PARENT
PHONON
SUPERCONDUCTIVITY
SUPERCONDUCTOR

All Related Versions

Version 1, 2008-03-09, ArXiv
Published version: Physical Review Letters, 100 (22), 226402.

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